Programmable inbox

See the five emails that matter. Not the hundred that don't.

You are a founder. Your time goes to customers, not to sorting email. Tell your inbox in one plain sentence what a lead, a question or a complaint looks like for you, and every email lands in the right place the moment it arrives. The lead is on top. The noise is out of sight.

Free to try on a real inbox below. Nothing to install, nothing stored.

Pick an inbox like yours, then change any rule

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Inbox12 emails

northstar.app expires in 3 days

DRDomain RegistryTo alex@northstar.app10:48
Your domain northstar.app expires on 22 September. Auto-renew is OFF. If it is not renewed by then, the domain is released and your website and email stop working.

Want this on your own inbox?SendBunny runs inside your AWS account: campaigns, transactional mail, and an inbox that files itself by rules you write. $199 once.See how it worksAmounts are read from the email text by code, not guessed. Test emails are not stored. A few sends per hour per visitor. Sample emails are made up.

The founder’s inbox

Three emails a founder cannot afford to miss, and does

About two thirds of what arrives is newsletters, receipts, notifications and cold pitches. The handful that cost money when missed look exactly like the rest at a glance.

The failed payment you saw a week late

A card expires, the charge fails, the retry fails, the subscription lapses. It was in your inbox the whole time, under forty newsletters.

The lead that went to the other tab

A prospect asked about pricing on Tuesday. You read it Friday. They had already signed up somewhere else.

The domain that nearly expired

Auto-renew was off. The registrar sent one email. If you miss it, the website and your own email stop working.

How it works

Sort emails into folders automatically, one sentence per folder

  1. 1

    Write a sorting rule in one sentence

    "A prospect asking about our price, a demo, or switching to us." That sentence is the whole rule. No keywords, no sender lists.

  2. 2

    An email arrives

    It is read once against every rule you wrote, in under a second. It goes to the folder that fits, with a score for how sure the decision was.

  3. 3

    Your inbox opens ranked

    Urgent first, then revenue at risk, wins, leads. Newsletters, receipts and auto-replies are already under Archive. Anything uncertain waits in Everything else, never in a wrong folder.

What lands where

An inbox organized by money and urgency, not by sender

These are the four a founder starts with. Rename them, add your own, or nest a folder inside another for more focus. A support desk starts with Bugs, How do I, Billing. A newsletter starts with Reader replies, Sponsor requests, Complaints.

Handled before the inbox and kept under Archive: newsletters and digests, receipts for tools you pay for, auto-replies and bounces, and anyone who asks to be removed.

  • Urgent

    A domain or certificate expiring with auto-renew off, the site down, an account about to be suspended, a security warning.

  • Revenue at risk

    Failed payments, disputes with a deadline, cancellations and downgrades. Each one is a customer about to leave.

  • Wins

    New customers and upgrades from your own billing system, so you can send a personal note in the first hour.

  • Leads

    A prospect asking about price, fit, a demo or a pilot. Not vendors pitching you.

Why not filters

Email triage that reads the email. Gmail filters only read the sender.

Filters and labels

  • Match a sender, a subject, a keyword.
  • “Payment failed” and “Payment received” come from the same address.
  • Rules rot the day someone writes “bill” instead of “invoice”.
  • Hide mail silently, so you check every tab anyway.

Sorting rules in plain English

  • Read the email and decide what it is about.
  • One sentence per folder, in your words, once.
  • A confidence score on every decision; uncertain mail waits in Everything else.
  • Nothing hidden: what was sorted away sits under Archive.

Questions founders ask

What is an AI email organizer?
An AI email organizer reads each incoming email and files it by what it is about, not by who sent it. SortInbox does this with rules you write in one plain sentence each, such as 'a prospect asking about our price'. Every email lands in the right folder the moment it arrives, and the ones that need you rank first.
How is this different from Gmail filters and labels?
Gmail filters match senders, subjects and keywords. They cannot tell a failed payment from a payment received, because both come from the same address. SortInbox reads the email itself. You describe the folder in a sentence and it decides which folder fits, with a confidence score, and leaves anything it is not sure about in Everything else.
Do I have to use the folders shown here?
No. The folders on this page are examples for a founder: Urgent, Revenue at risk, Wins and Leads. You can rename them, delete them, add your own, and nest folders one level deep. A newsletter, a support desk and a software company each get a different inbox from the same idea.
What happens to newsletters, receipts and auto-replies?
They are handled before they reach your inbox and kept under Archive: newsletters and digests, receipts for things you pay for, auto-replies and bounces. Anyone who writes 'please remove me' in a reply is added to your suppression list so you never email them again.
Is my email stored when I try the demo?
No. The test email you send is read once to decide its folder and is not stored. The sample emails on the page are made up. There are a few sends per hour per visitor.
Where does SortInbox run?
Inside SendBunny, the email platform that runs in your own AWS account. Campaigns, transactional email and the inbox live together, and nothing about your mail leaves your account except the one call that decides a folder. SendBunny is a one-time purchase of $199.

Your inbox, ranked by what comes first

SortInbox is part of SendBunny, the email platform that runs in your own AWS account: campaigns, transactional email and an inbox that sorts itself. One payment, $199. Pay Amazon pennies for sends.